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path: root/plugin/cache/handler.go
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Diffstat (limited to 'plugin/cache/handler.go')
-rw-r--r--plugin/cache/handler.go22
1 files changed, 20 insertions, 2 deletions
diff --git a/plugin/cache/handler.go b/plugin/cache/handler.go
index e2b4155ee..f443f3d47 100644
--- a/plugin/cache/handler.go
+++ b/plugin/cache/handler.go
@@ -6,6 +6,7 @@ import (
"time"
"github.com/coredns/coredns/plugin"
+ "github.com/coredns/coredns/plugin/metadata"
"github.com/coredns/coredns/plugin/metrics"
"github.com/coredns/coredns/request"
@@ -37,7 +38,7 @@ func (c *Cache) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg)
ttl := 0
i := c.getIgnoreTTL(now, state, server)
if i == nil {
- crr := &ResponseWriter{ResponseWriter: w, Cache: c, state: state, server: server, do: do, ad: ad}
+ crr := &ResponseWriter{ResponseWriter: w, Cache: c, state: state, server: server, do: do, ad: ad, wildcardFunc: wildcardFunc(ctx)}
return c.doRefresh(ctx, state, crr)
}
ttl = i.ttl(now)
@@ -63,12 +64,29 @@ func (c *Cache) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg)
cw := newPrefetchResponseWriter(server, state, c)
go c.doPrefetch(ctx, state, cw, i, now)
}
+
+ if i.wildcard != "" {
+ // Set wildcard source record name to metadata
+ metadata.SetValueFunc(ctx, "zone/wildcard", func() string {
+ return i.wildcard
+ })
+ }
+
resp := i.toMsg(r, now, do, ad)
w.WriteMsg(resp)
-
return dns.RcodeSuccess, nil
}
+func wildcardFunc(ctx context.Context) func() string {
+ return func() string {
+ // Get wildcard source record name from metadata
+ if f := metadata.ValueFunc(ctx, "zone/wildcard"); f != nil {
+ return f()
+ }
+ return ""
+ }
+}
+
func (c *Cache) doPrefetch(ctx context.Context, state request.Request, cw *ResponseWriter, i *item, now time.Time) {
cachePrefetches.WithLabelValues(cw.server, c.zonesMetricLabel).Inc()
c.doRefresh(ctx, state, cw)